Chmod Calculator

Convert between symbolic and octal chmod notation

Calculate Unix file permissions — toggle read, write, execute and get symbolic (rwx) and octal (755) forms locally.

Also known as: chmod converter · octal permissions · symbolic chmod · permission calculator

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How to use the Chmod Calculator

  1. Toggle read, write, and execute for owner, group, and others.
  2. Or enter an octal value (e.g. 644) to update the checkboxes.
  3. Copy symbolic (u=rwx,g=rx,o=rx) or octal notation.

FAQ

What is the difference between 755 and 644?
755 gives the owner rwx and others rx (common for executables); 644 gives owner rw and others r (common for files).
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